Question

In a protein molecules various amino acids are linked together by:

• A. $\alpha -$ glycosidic bond
• B. $\beta -$ glycosidic bond
• C. peptide bond
• D. dative bond

Answer 1

The correct option is C peptide bond

In a protein molecules various amino acids are linked together by peptide bond.
peptide bond or peptide linkage is an amide formed between -COOH and NH2 group by elimination of a water molecule. The peptide bond or linkage is $-\underset{\underset{\text{O}}{||}}{C}-NH-$